Sweet! New concepts! I don't think it applies though . . .
What is the relevance of using Stonefist in the combo?
Shocked or Paralyzed + Impact does Discharge (at least if Iremember correctly
If Shocked + Impact doesn't Discharge, then that would explain why it's not working right for me lol.
Ok, I'm wrong. It did apply to your understanding of Discharge.
Haxaw has it correct. Paralyze + Impact/Precision Detonator = Discharge. . The passive is named Static Charge, and paralyzes as enemies attack while you cast. Paralyze also shocks. The deal is if you have the passive, and you're casting SF at close range, you'll get an automatic discharge combo that leaves the enemy in a sleep state afterward due to weaken+shock interaction.
SF is an impact detonator. VS is not. SF would self-prime and detonate with SC. VS would not. See where I'm getting at? I love VS on a keeper, but SF is better for the AW.
Simplicity vs Complexity does matter however. The fewest steps required is the most desire-able for any engineer designing a product. In this case, there's basically only one step to get a desire-able sleep combo, whereas CL+VS is at least two.
What would you rather do, take two casts to do almost the same thing? Granted SF + VS cast differently and different range, but most of the time it'll be negligible difference. Or would you do it in one step, gain discharge combo for aoe damage and spirit damage on top of that. I know what I'd do.
Occam's Razor is a guiding principle, and I think it applies. Murphy's law applies to the idea that other factors will interrupt your additional steps. "Whatever can go wrong, will" The more steps you have, the more chances you have for something unexpected to go wrong. Like a Brute, Terror or unseen Shadow making your life difficult between casts.
It's cool down is apparently pointless
Primarily useful for perma-snoozing the RTC, and the above SF-->Discharge-->Sleep combo at melee range.